Maid of Honor
Grace is Katie's sister (if you couldn't tell from the picture!) Many years of getting bossed around by her big sister has prepared Grace for the entire wedding planning process.
Best Man
Will's Fuselier-Lipnickey credentials are pristine! If introducing Mark and Katie all those years ago wasn't enough, Will survived both road tripping across the country with both of them and living with Katie at Vanderbilt.
Bridesmaid
While Katie is grateful for how happily Alex has welcomed her into the Lipnickey family, she is especially grateful for the many, many hours Alex has spent dog sitting Hunter.
Groomsman
At one time or another, both Mark and Jeremy have called the other's mom, "Mom." If that's not a testament to how long they've been friends, we don't know what is.
Bridesmaid
Katie and Brigid met on the first day of high school and have been friends ever since. Brigid may still call Katie "Kathy," but she deserves major kudos because she is directly responsible for any and all fun Katie had in high school.
Groomsman
Mark took the high road by not forcing Nick to chug a warm Smirnoff Ice to accept the offer to join the wedding party. Ices notwithstanding, years of choir and trying to keep an entire fraternity out of trouble have solidified Mark and Nick's friendship.
Bridesmaid
Katie and Nikki sang a cappella together in college and may have attended more sorority date parties together than Katie and Mark have.
Groomsman
From matching clothes on the first day of school (pictured) to matching career paths, Sam is who Mark wants to be when he grows up.